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VB.NET UWP/WinRT Examples

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(VB.NET UWP/WinRT) Using WS_FTP Self-signed Certificate file (.crt) and Private Key File. (.key)

Demonstrates how to use a self-signed certificate created by WS_FTP with Chilkat FTP2.

Note: It is usually not necessary for the FTP client to use a client-side certificate. Most FTP servers using SSL and TLS connections (explicit or implicit) do not require client-side certs. In addition, some high-security FTP servers require "real" certificates -- meaning certificates issued by a real certificate authority with a chain of authentication that leads to a trusted root certificate. The certificates created by WS_FTP are self-signed and untrusted.

Chilkat Universal Windows Platform (UWP) / WinRT Downloads

Chilkat for the Universal Windows Platform (UWP)

'  Important:  Before running this program, convert your
'  .crt and .key files to a .p12 using OpenSSL:
'  The command is this:
'  openssl pkcs12 -export -in test.crt -inkey test.key -out test.p12
' 

Dim ftp As New Chilkat.Ftp2

Dim success As Boolean

'  Any string unlocks the component for the 1st 30-days.
success = ftp.UnlockComponent("Anything for 30-day trial")
If (success <> True) Then
    Debug.WriteLine(ftp.LastErrorText)
    Exit Sub
End If



ftp.Hostname = "ftp.***.com"
ftp.Port = 21
ftp.Username = "testLogin"
ftp.Password = "testPassword"

'  This example will use explict TLS/SSL.
'  Establish an explicit secure channel after connection
'  on the standard FTP port 21.
ftp.AuthTls = True

'  The Ssl property is for establishing an implicit SSL connection
'  on port 990.  Because this example uses explicit SSL, it
'  should remain False.
ftp.Ssl = False


'  Create an instance of a certificate store object, load a .p12 file,
'  locate the certificate we need, and use it for signing.
'  (a P12/PFX file may contain more than one certificate.)
Dim certStore As New Chilkat.CertStore
'  The 1st argument is the filename, the 2nd arg is the
'  .p12 file's password.  (OpenSSL will prompty you to set a password
'  when converting the .crt and .key into a .p12).
success = certStore.LoadPfxFile("test.p12","secret")
If (success <> True) Then
    Debug.WriteLine(certStore.LastErrorText)
    Exit Sub
End If


Dim cert As Chilkat.Cert
cert = certStore.FindCertBySubjectCN("Your cert's common name")
If (cert Is Nothing ) Then
    Debug.WriteLine(certStore.LastErrorText)
    Exit Sub
End If


success = ftp.SetSslClientCert(cert)



'  Connect and login to the FTP server.
success = Await ftp.ConnectAsync()
If (success <> True) Then
    Debug.WriteLine(ftp.LastErrorText)
    Exit Sub
Else
    '  LastErrorText contains information even when
    '  successful. This allows you to visually verify
    '  that the secure connection actually occurred.
    Debug.WriteLine(ftp.LastErrorText)
End If


Debug.WriteLine("Secure FTP Channel Established!")
Debug.WriteLine(ftp.LastErrorText)

'  Do whatever you're doing to do ...
'  upload files, download files, etc...

'  ...
'  ...

success = Await ftp.DisconnectAsync()

 

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